Six weeks after a convincing knockout victory, Andrei Arlovski (18-9-1) is set for a December return.

Arlovski will meet Mike Hayes (18-5) on Dec. 16 in Moscow in the main event of “Battle of Moscow 9″ under the Fight Nights banner. The heavyweight announced the news on his Twitter account.

A native of Belarus in the former Soviet Union, Arlovski will compete in Russia for the first time since his third professional fight.

After a four-fight skid over a more than two-year stretch that included three knockouts, Arlovski now is unbeaten in his past four fights.

Arlovski earlier this month made quick work of Strikeforce vet Devin Cole (20-10-1) for a first-round TKO in the main event of World Series of Fighting 1 in Las Vegas.

In August, he fought fellow former UFC heavyweight champion Tim Sylvia for the fourth time in the main event of “ONE FC: Pride of a Nation” in the Philippines. But the bout was ruled a no contest when Arlovski landed soccer kicks to Sylvia’s head before being cleared by the referee for an open attack.

After leaving the UFC following a March 2008 TKO of Jake O’Brien at UFC 82, Arlovski beat current UFC heavyweights Ben Rothwell and Roy Nelson by knockout.

But then he hit a skid of almost infamous proportions with knockout losses to Fedor Emelianenko, Brett Rogers and Sergei Kharitonov and a decision loss to Antonio Silva. After the skid, he took his training from primarily in Chicago to Greg Jackson in New Mexico, and the results have been a 3-0-1 run.

Hayes is a Bellator veteran who most recently dropped a unanimous decision to D.J. Linderman at Cage Warriors 47 in June, losing his heavyweight title in the process. That loss, his second to Linderman, snapped a six-fight win streak that included a unanimous decision win over Neil Grove at Bellator 52.

Hayes won the Cage Warriors heavyweight belt against Andreas Kraniotakes in March.

A total of 26 fighters got their chance to shine on Saturday as part of UFC 190 at Rio de Janeiro’s HSBC Arena. Now that UFC 190 is in the books, it’s time to commence MMAjunkie’s “Three Stars” ceremony.

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